Tandem Insertion of Halocarbenoids and Lithium Acetylides into Zirconacycles: A Novel Rearrangement to Zirconium Alkenylidenates by β??Addition to an Alkynyl …

…, E Thomas, S Dixon, RJ Whitby

Index: Stec, Jozef; Thomas, Emma; Dixon, Sally; Whitby, Richard J. Chemistry - A European Journal, 2011 , vol. 17, # 17 p. 4896 - 4904

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Abstract

Abstract Tandem insertion of 1, 1-dihalo-1-lithio species (halocarbenoids) and lithium alkynides into zirconacyclopentenes and zirconcyclopentanes affords carbocyclic products in high yields via an unusual rearrangement that probably involves addition of an organolithium species to the β-position of a zirconium–alkyne complex to give an alkenylidene–zirconate species. A wide variety of cyclopentanoid organic structures are ...

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